---10-7-----(b9)5-------|
----------------------|
-(b9)------(b9)-----------|
----------------------|
----------------------|
----------------------|


---10-7-----(b9)5-------| ----------------------|
----------------------| -------6-5----10-5----|
-(b9)------(b9)-----------| -9/7-7------7---------|
----------------------| ----------------------|
----------------------| ----------------------|
----------------------| ----------------------|


-------------------------|
---6-5-------------------|
-7-------7-6/2-----------|
-------------------------|
-------------------------|
-------------------------|


---10-7---------------|
-----------10---------|
-(b9)------(b9)-----------|
----------------------|
----------------------|
----------------------|


---10-7-----(b9)5-------| ----------------------|
----------------------| -------6-5----10-5----|
-(b9)------(b9)-----------| -9/7-7------7---------|
----------------------| ----------------------|
----------------------| ----------------------|
----------------------| ----------------------|


-------------------------|
---6-5-------------------|
-7-------7-6/2-----------|
-------------------------|
-------------------------|
-------------------------|


--10-7-----(b9)5--------|
----------------------|
--------(b9)------------|
----------------------|
----------------------|
----------------------|


---10-7-----(b9)5-------| ----------------------|
----------------------| -------6-5----10-5----|
-(b9)------(b9)-----------| -9/7-7------7---------|
----------------------| ----------------------|
----------------------| ----------------------|
----------------------| ----------------------|


-------------------------|
---6-5-------------------|
-7-------7-6/2-----------|
-------------------------|
-------------------------|
-------------------------|